Nature’s Second Chance, by Steven I. Apfelbaum

Back in the '70s when Steven Apfelbaum told his mom he was
studying for a degree in ecology, his mother didn't know what to think. Unable
to accept or perhaps even understand this new specialty, she told friends that
"Little Stevie was going to be a veterinarian." She wasn't the only one
wondering. Ecology was a vague, warm-n-fuzzy abstract that smacked of good but
impractical intentions with some real science-botany, geology and
chemistry-bundled into a degree that would be difficult to market.